app/views/errors/internal_server_error.html.erb
<h4>We're sorry, but something went wrong.</h4>
<p>Our server experienced a temporary error. Try your search again or come back later if the error occurs again. You can also <%= link_to 'give us feedback', 'https://libraries.psu.edu/website-feedback' %> about the problem. If you need more assistance, <%= link_to 'Ask a Librarian', 'https://libraries.psu.edu/ask/' %>.</p>